HomeProductsIntelligent seriesThree-way Pneumatic Threaded Ball Valve

Three-way Pneumatic Threaded Ball Valve

Our Three-Way Pneumatic Threaded Ball Valve is a versatile flow control solution designed for diversion, mixing, and shut-off applications in compact piping systems. Featuring a precision-machined L-port or T-port ball and NPT/BSP threaded connections, this valve provides bubble-tight shutoff (ANSI Class VI) while enabling seamless flow direction changes.

Equipped with pneumatic actuators (double-acting or spring-return), it offers fast, automated operation for chemical processing, HVAC, water treatment, and industrial automation systems. The ISO 9001 and SIL certified design ensures reliable performance in critical processes.

1. Key Features

• Three-Way Functionality - L-port (diversion) or T-port (mixing) configurations
• Threaded Connection - NPT/BSP threads for compact piping systems
• Bubble-Tight Shutoff - PTFE seats (ANSI Class VI) or metal seats (Class IV)
• Pneumatic Actuation - Double-acting or spring-return (fail-safe) options
• Compact Design - Saves 25% space compared to flanged valves


2. Performance Advantages

• High Flow Efficiency - Low pressure drop design
• Wide Temperature Range - -20°C to 180°C (PTFE seats)/-196°C to 450°C (metal seats)
• Corrosion Resistance - 304/316 stainless steel body options
• Quick 90° Operation - Fast response for process automation


3. Technical Parameters

Parameter Specification
Body Material CF8 (304 SS), CF8M (316 SS), WCB
Connection Type NPT, BSP (male/female threads)
Port Configuration L-port (diversion) or T-port (mixing)
Pressure Rating 150-600 PSI (10-40 bar)
Actuator Type Double-acting/Spring-return (ATEX optional)
Flow Coefficient Cv: 5-120 (depending on size)

4. Typical Applications

• Chemical Processing - Reagent mixing, dosing systems
• HVAC Systems - Water circulation control
• Water Treatment - Filtration backwashing
• Industrial Automation - Process line diversion


5. Compliance & Certificates

• ISO 9001:2015 - Quality Management System
• SIL 2/3 - Safety Integrity Level (upon request)
• Fire-Safe Option - API 607/ISO 10497 compliant


6. Optional Upgrades

• Explosion-Proof Actuator (ATEX, IECEx)
• Position Feedback (4-20mA, NAMUR sensor)
• Manual Override (Locking handle)
• Extended Stem For insulation jackets

If you have any enquiry about quotation or cooperation,please feel free to email us at or use the following enquiry form. Our sales will contact you within 24 hours. Thank you for your interest in our products.

Sign up for the newsletters